Tag: wind power
Energy Security at a Cost: The Ripple Effects of the Baltics’ Desynchronization from the BRELL Network
The Baltic States’ desynchronization from the BRELL network on February 7, 2025, cut ties with Russia and Belarus, ending electricity trade. Though the transition was smooth with no outages, recent underwater cable disruptions have highlighted vulnerabilities, raising energy security concerns. These events underscore the importance of both diversifying and decentralizing power systems, drawing lessons from Ukraine’s electricity market, which has remained operational despite sustained Russian attacks.
The Baltics’ power system was part of a large Russian-operated synchronous electricity system known as BRELL, which connected the electricity transmission systems of Belarus, Russia, Estonia, Latvia, and Lithuania (Figure 1). The desynchronization from BRELL and the integration into the European grid have been discussed since 2007, when the Prime Ministers of the Baltic States declared desynchronization as the region’s strategic priority. In 2018, a decision was made to join the Continental European Synchronous Area through a connection with Poland, leading to significant investments – financially supported by the European Commission – to ensure adequate infrastructure. Fully committing to their priority, the Baltic’s desynchronized completely from BRELL on February 7th, 2025.
Figure 1. The BRELL power ring
Source: Karčiauskas (2023)
A Successful Physical (De)synchronization
The desynchronization process proceeded smoothly, with no blackouts. This success was anticipated, given the project’s meticulous planning over several years. A comparable example is Ukraine, which disconnected from the Russian and Belarusian power systems less than a month after Russia’s full-scale invasion in 2022. Ukraine then synchronized with the Continental European power grid ENTSO-E, an event that had been in preparation since 2017.
After the desynchronization, the Baltic states temporarily operated in island mode, relying entirely on domestic generation for all grid operations. To maintain system stability, the commercial capacity of interconnectors with the Nordics (whose regional group is not part of the Continental European Synchronous Area) was reduced, ensuring they could serve as reserves in case of major generator outages. The NordBalt cable is one such connector linking Sweden’s SE4 region and Lithuania.
However, conditions are gradually returning to normal. As of February 17, 2025, 700 MW is now available for commercial trading, as shown in Figure 2. Despite this progress, the commercial trading capacity of the interconnector with Poland (the LitPol line) remains heavily restricted and is primarily used to maintain system stability.
Figure 2. Day-ahead commercial transfer capacities on the Nordic interconnectors around the desynchronization
Source: Nord Pool
The Baltic region’s synchronization with the European grid is currently achieved through a 400 kV overhead power line connecting Lithuania and Poland. A second link, the Harmony Link, an underground cable, is planned to become operational by 2030. This makes the existing interconnection an essential part of regional infrastructure and a potential security risk, particularly given the recent sabotage of cables in the Baltic Sea. In response to these threats, Lithuania has increased surveillance of the NordBalt cable. The country’s prime minister has estimated the cost of securing the Baltic cables at €32-34 million, seeking EU support for its funding. The government has also strengthened the protection measures. Initially, security was outsourced to a private security company, but plans are in place for the country’s Public Security Service (Viešojo saugumo tarnyba) to take over in spring 2025. Further, in preparation for the Baltics’ full desynchronization, the Polish Transmission System Operator deployed helicopters to patrol the interconnection, to enhance the security of the infrastructure.
From Trade Interruption to Infrastructure Sabotage
The most significant short-term impact of the desynchronization from the BRELL is the limitation of electricity trade for the Baltic states. The desynchronization has affected reserve balancing in the Baltic region, forcing the three states to rely more on their internal generation for system stability. This has resulted in reduced generation capacity for commercial trade, as the states must be prepared to again operate in island mode in case of an outage on the LitPol cable. Until February 19, 2025, the LitPol line remained unused for commercial trading. However, gradual increases are expected to eventually allow for 150 MW commercial trade between the Polish area and the Baltics, a significant reduction from the 500 MW previously available. This limited trading capacity could lead to higher prices in the Baltics, as the region is a net importer of electricity.
This is not the first time the Baltics have faced trade disruptions. In November 2020, after the construction of a Belarusian nuclear power plant near the Lithuanian border, Lithuania, followed by Latvia and Estonia, limited commercial electricity exchanges with Russia and Belarus. Furthermore, on May 15, 2022, electricity trade between Russia and Finland was halted, followed by the closure of the Kaliningrad-Lithuania connection the next day. While this event led to no blackouts, it clearly impacted the region’s price volatility (Lazarczyk & Le Coq, 2023).
Recently, the region has experienced sabotage to underwater interconnectors, significantly impacting electricity trade between the Nordics and the Baltics. On December 25, 2024, the Estlink 2 cable, one of two connections between Finland and Estonia, was cut, reducing transmission capacity between the two regions. Repair costs are expected to reach several million Euros. As disclosed via Nord Pool’s Urgent Market Message, repairs are expected to last until August 2025 – stressing the system. As Estlink 2 is offline, the Baltic system is not fully operating. If another major component fails, there may be insufficient capacity to maintain grid stability, increasing the risk of outages or the need for emergency interventions.
With the complete disconnection from the Russian and Belarusian power grids, Russia no longer has direct control over the Baltic electricity trade, effectively eliminating the risk of trade disruptions from Russia. However, a new energy threat has emerged: infrastructure sabotage. Although the perpetrators of recent sabotage incidents have not been clearly identified, both Lazarczyk & Le Coq (2023) and Fang et al. (2024) emphasize Russia’s strategic incentives to engage in such actions to maintain its geopolitical influence and discourage neighboring countries from reducing their energy dependence. Sabotaging critical infrastructure presents another efficient method of weaponizing electricity, particularly in the current context of limited Nord Pool imports and the Baltic States’ insufficient integration with the broader European grid.
From Diversification to Decentralization: Responses to Electricity Infrastructure Threats
The Baltic States have diversified their domestic energy supply sources to address the electricity infrastructure threat. In 2024, Estonia’s parliament approved the development of nuclear energy, with Fermi Energia planning to build two 300 MW light-water reactors. Other projects include a hydrogen-ready gas plant in Narva, which is expected to be completed by 2029, as well as an expansion of wind power capacity. While there was some support for extending the use of oil-fired plants in Estonia, their competitiveness has been undermined by high carbon prices and the closure of domestic oil fields. Elering, the Estonian Transmission system operator, has also begun long-term procurement to acquire 500 MW of new generation and storage for frequency management to ensure reserve capacity.
However, diversification alone will not be sufficient to address the challenges currently faced by the Baltic States. Incidents like the cutting of underwater cables underscore the growing need to decentralize the power system. Large, centralized power plants are more vulnerable to targeted attacks compared to decentralized energy systems. As a result, connected microgrids seem to be a viable solution for future energy resilience, as they can maintain functionality even when localized damage occurs. Again, Ukraine’s experience demonstrates the benefits of decentralization. Since the onset of the war, Ukraine has faced both physical and cyberattacks but has strengthened its energy resilience by decentralizing its system and expanding wind and solar power (Eurelectric, 2025). This approach has proven effective: while a single missile could destroy a nearly gigawatt-scale power plant, it would only damage an individual wind turbine or a small section of solar panels, significantly limiting the overall impact.
The desynchronization of the Baltic States from the BRELL network marked a complete break with Russia and Belarus, effectively ending any possibility of electricity trade between these countries and the Baltic region. This transition was successfully completed without any power outages. While the primary goal was to enhance energy security in the Baltics, several challenges remain, as highlighted in this policy brief. Recent disruptions to underwater cables, as well as Russia’s attacks on Ukraine’s electricity market, underscore the urgent need for both diversification and decentralization to strengthen the region’s energy security. While energy supply diversification reduces supply chain dependencies, decentralization enhances resilience against targeted attacks, creating a more robust and flexible energy system.
References
- Eurelectric, 2025, Redefining Energy Security In the age of electricity, Lexicon.
- Fang, S., Jaffe, A. M., Loch-Temzelides, T., and C.L. Prete. (2024). Electricity grids and geopolitics: A game-theoretic analysis of the synchronization of the Baltic States’ electricity networks with Continental Europe. Energy Policy, 188, 114068.
- Karčiauskas, J. (2023). Lithuania External Relations Briefing: Synchronization of the Baltic Electricity Network and Breaking Dependence on Russian Energy Market. China CEE Institude Weekly Briefing 2023 Eylül, 4, 3.
- Lazarczyk, E. and Le Coq, C. (2023). Power coming for Russia and Baltic Sea region’s energy security, Energiforsk report.
- Lazarczyk, E. and Le Coq, C. (2022). Can the Baltic States Do Without Russian Electricity?, FREE Policy Brief.
Disclaimer: Opinions expressed in policy briefs and other publications are those of the authors; they do not necessarily reflect those of the FREE Network and its research institutes.
Will New Technologies Change the Energy Markets?
With an increasing world demand for energy and a growing pressure to reduce carbon emissions to slow down global warming, there is a growing necessity to develop new technologies that would help addressing demand and carbon footprint issues. However, taking into account the world’s dependence on hydrocarbons the question remains – can new technologies actually change the energy markets? In this policy brief, we highlight challenges and opportunities that new technologies will bring for energy markets, in particular wind energy, smart grid technology, and electromobility, that were discussed during the 10th SITE Energy Day, held at the Stockholm School of Economics on October 13, 2016.
The expanding world population and economic growth are considered the main drivers of the global energy demand. Up to 2040, total energy use is estimated to grow by 71% in developing countries and by 18% in the more mature energy-consuming OECD economies (IEA, 2016). In parallel, many countries (including the world’s biggest economies and largest emitters: USA and China) have signed the Paris agreement – the first-ever universal, legally binding global climate deal that aims to reduce emissions and to keep the increase in global average temperature from exceeding 2°C above pre-industrial levels.
Meeting a growing global energy demand, and at the same time reducing CO2 emissions, cannot be achieved by practicing ‘business as usual’. It will require some fundamental changes in the way economic activity is organized. In this context, the development of new technologies and how it will affect the energy sector is a crucial element.
Wind power, smart grid, and electromobility
With technological progress and support schemes to decrease CO2 emissions, wind energy is now a credible and competing alternative to energy produced from coal, gas and oil. In 2015, wind accounted for 44% of all new power installations in the 28 EU member states, covering 11.4% of Europe’s electricity needs (see here).
This new technology has triggered a downward pressure on energy prices because of a “Merit order effect” (i.e. a displacement of expensive generation with cheaper wind). While consumers may appreciate this development, Ewa Lazarczyk Carlson, Assistant professor at the Reykjavik University (School of Business) and IFN, stressed that the increasing importance of wind energy challenges the functioning of electricity exchange. First, a lower price has reduced the incentives to invest in conventional power plants necessary when the wind is not blowing or when it is dark. Moreover, with the renewable energy intermittency, the probability of system imbalance and price volatility has increased. In turn, this has led to an increase of maintenance costs for conventional generators due to their dynamic generation costs (i.e. start-ups and shut-down costs).
Digital technology has gradually been used in the energy sector during the last decades, changing the way energy is produced and distributed. With smart grid (i.e. an electricity distribution system that uses digital information) energy companies can price their products based on real time costs while customers have access to better information, allowing them to optimize their energy consumptions. Sergey Syntulskiy, Visiting Professor at the New Economic School in Moscow, stressed that smart grids have had at least two effects. They have made the integration of renewable energy to the system easier and have allowed for prosumers, i.e. entities that both consume and produce energy. The next step is to develop new regulatory incentives to optimize energy systems as well as to provide a legal framework for the exchange of information in the energy sector.
One of the main pollutants has long been the transport sector that accounts for 26% energy-related of CO2 emission (IEA, 2016). Electromobility – that is, use of electric vehicles – is often considered the solution for this problem. When this technology is widely adopted, a major switch from oil to electricity is expected for the transportation sector. Mattias Goldmann, CEO of Fores, argued that even if electromobility will improve air quality and reduce noise levels in cities, its positive impact relies on smart grids and locally produced energy. Moreover, the environmental benefits will be ensured only if electric energy is produced from renewable and clean sources.
Toward a carbon-neutral energy system?
The Nordic countries are currently pushing for a near carbon-neutral energy system in 2050. Markus Wråke, CEO at the Swedish Energy Research Centre, emphasized that the Nordic Carbon-Neutral Scenario is only feasible if new technologies allow for a significant change of energy sources and a better interconnected market (see report by IEA 2016 b).
To cut emissions, a decrease in oil and gas consumption in energy production and within the transport sector is needed (see Figure 1). The adoption of electric vehicles (EVs) and hybrid cars is very likely to drastically increase in the next decades (EVs may have a share of 60% of the passenger vehicle stock in 2050, IEA 2016b).
Figure 1. Nordic CO2 emissions in the CNS
Source: IEA, 2016.
There are currently limited technology options to reduce emissions for big industrial energy consumers. Moreover, there is a concern that those industries may choose to relocate if the Nordic emission standards are too strict. It is therefore important to have low and stable electricity prices. This can only be achieved if cross-border exchanges are improved (which means that the electricity trade in the Nordic region will have to increase 4-5 times by 2050). It is unclear however how policy makers will create a regulation that incentivizes energy companies to build interconnections and increase trade both between the Nordic countries, and the Western and Eastern European countries.
Figure 2. Electricity trade 2015 and 2050
Source: IEA, 2016.
Energy producers
Another concern is that energy-exporting and energy-importing countries may have opposing attitudes towards investing and developing new energy technologies. Countries among the biggest energy producers and exporters depend on a stable demand and price for energy. For example, Russian GDP growth depends between 50-92% on the oil price, depending on the variables used for calculations, as mentioned by Torbjörn Becker, Director of SITE. For large exporters of hydrocarbon, new energy technologies may be seen as a threat because of a potentially reduced energy demand and an increased price volatility that will, in turn, create fundamental issues to balance state budgets and improve living standards.
Figure 3. The Relationship between Russian GDP and oil price
Source: Calculations by Torbjörn Becker, October 13, 2016
The challenge of security of supply
To summarize, new energy technologies will drive energy companies towards optimizations and cost cutting, bring previously unseen connectivity to energy markets and make energy markets more complex. Samuel Ciszuk, Principal Advisor at the Swedish Energy Agency, stressed that interconnected, more complex and interdependent energy systems might increase the vulnerability of energy systems to external threats and intimidates to decrease the security of supply. Technological change and increased competition with lower profit margins will force companies to minimize their expenditure on energy production, storage and transmission and to find cheaper financing options. Optimization and searches for cheaper financing instruments will push energy companies towards selling some of the company assets to financial investors. These changes will create a more decentralized energy market, with more players. Such energy systems will become harder to govern in times of an energy crisis and external threats. Policy makers will have to design new and more complex regulations to fit the needs of the transforming energy markets.
References
- Fogelberg, Sara and Ewa Lazarczyk, 2015. “Wind Power Volatility and the Impact on Failure Rates in the Nordic Electricity Market”, IFN Working Paper 1065.
- IEA, Annual Energy Outlook, 2016a.
- IEA/OECD/Norden, 2016b. “Nordic Energy Technology Perspectives” (see here)
- Speaker presentation from the 10th Energy day, 2016 (see here)